As a kid in the '80s, my father would take us to the drive-in theater to watch Mexican movies (anyone remember Lola la Trailera?). Remembering those days, I don't see why they are not popular anymore. It gives you more privacy to be with your partner, especially if your windows are tainted. And I'm sure the tickets would be cheaper because the theater would not have all the additional bills that coming from having a roof.
Why can't they come back!!!